1/*
2 *
3 * Copyright 2015 gRPC authors.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 */
18
19#ifndef GRPC_SUPPORT_CPU_H
20#define GRPC_SUPPORT_CPU_H
21
22#include <grpc/support/port_platform.h>
23
24#ifdef __cplusplus
25extern "C" {
26#endif
27
28/** Interface providing CPU information for currently running system */
29
30/** Return the number of CPU cores on the current system. Will return 0 if
31 the information is not available. */
32GPRAPI unsigned gpr_cpu_num_cores(void);
33
34/** Return the CPU on which the current thread is executing; N.B. This should
35 be considered advisory only - it is possible that the thread is switched
36 to a different CPU at any time. Returns a value in range
37 [0, gpr_cpu_num_cores() - 1] */
38GPRAPI unsigned gpr_cpu_current_cpu(void);
39
40#ifdef __cplusplus
41} // extern "C"
42#endif
43
44#endif /* GRPC_SUPPORT_CPU_H */
45

source code of include/grpc/support/cpu.h